94 



the side of the pier, close to the Ordnance bench-mark, and near 

 the guard-house; it is well sheltered, and in deep water. The 

 zero of the tide-gauge is 19 - 80 feet below the Ordnance bench-mark. 



The meteorological instruments arelikewisefavourablyplaced: the 

 barometer in the guard-house, and the thermometers and rain-gauge 

 in an inclosed yard connected with it. The meridian line is traced 

 on the sill of a window in the guard-house. The height of the 

 cistern of the barometer was not measured; it is between 3 and 4 

 feet above the bench-mark. The diameter of the tube is 0"30 of an 

 inch. 



Killough (Co. Down) — Lighthouse, St. John's Point This 



is a meteorological station only, and is well circumstanced for 

 such observations. The barometer is put up in the hall of the 

 light-keeper's dwelling ; the other meteorological instruments are 

 well placed in a garden attached to it. The meridian-line is traced 

 on the flagging, at the south side of the house, the shadow being 

 given by a vertical iron rail. The cistern of the barometer is 7*8 

 feet above the base of the light-house tower; the diameter of the 

 tube is 0-28 inch. 



Kingstown Harbour (Co. Dublin) This is a station for tidal 



observations only. The tide-gauge is erected in the angle at the 

 inner side of the new harbour. This locality is very favourable, as 

 the water is deep, and the case is protected by the pier from the 

 waves which enter the outer harbour from the north-east. The time 

 at this station is taken from the clock of the Dublin and Kingstown 

 Railway. 



Courtown Harbour (Co. Wexford) The tide-gauge at Cour- 



town Harbour is erected beside the wooden pier, which is now used 

 for the unlading of vessels, in consequence of the filling up of the 

 harbour originally built. The situation of the gauge is very 

 much exposed ; but as the station was considered by the Committee 

 to be important, it was determined to attempt making the observa- 

 tions with the gauge lashed to the pier. Hitherto the observa- 

 tions have been but seldom interrupted by the violence of the sea. 



The barometer is erected in the guard-house belonging to the sta- 

 tion ; the thermometers and rain-gauge in the garden attached to it, 

 and are in charge of the chief boatman. The diameter of the baro- 



